db

package

v0.0.0-...-2e52d37 Latest Latest Go to latest Published: Jan 18, 2022 License: MIT Imports: 6 Imported by: 0

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func Conflict(gamma *Command, delta *Command) bool

Conflict checks if two commands are conflicting as reorder them will end in different states

func ConflictBatch(batch1 []Command, batch2 []Command) bool

ConflictBatch checks if two batchs of commands are conflict

type Command struct {
	Key       Key
	Value     Value
	ClientID  identity.NodeID
	CommandID int
}

Command of key-value database

func (c Command) Empty() bool

func (c Command) Equal(a Command) bool

func (c Command) IsRead() bool

func (c Command) IsWrite() bool

func (c Command) String() string

type Database interface {
	Execute(Command) Value
	History(Key) []Value
	Get(Key) Value
	Put(Key, Value)
}

Database defines a database interface TODO replace with more general StateMachine interface

func NewDatabase() Database

NewDatabase returns database that impelements Database interface

type Key int

Key type of the key-value database

type Value []byte